Hi there all at rabroad, i am trying to track down a film i saw back in the late 70's when i was very young. I can only remember two parts of the film, so here goes - Scene 1- is at the start of the movie where we see a middle aged man in a tracksuit jogging in the park, probably somewhere in london, this is happening while the titles/cast are going up. As the titles finish & the film begins, the man seems to have a heart attack & collapses & dies (i think). Scene 2- is near the end of the film & involves a psychopath being chased, being caught & handcuffed to the bumper of a car, a police car maybe, only to find when they get back to him that he has severed his own hand in order to escape again, If anyone knows anything of this film, would you be most kind as to send a reply, many thanks for your time - 4343digipak.